James Avery, best known for his role as Uncle Phil on The Fresh Prince of Bel-Air, has died. He was 68.

Alfonso Ribeiro, who played his son, Carlton, broke the news Wednesday on Twitter. “The world has lost a truly special man. I’m deeply saddened to say that James Avery has passed away. He was a second father to me. I will miss him greatly.”

Avery reportedly had undergone surgery recently and passed away from complications at an L.A. hospital.